To Next PageTo Next PageWhat causes low head and high vapor pressures in my Rheem RA1748AJ2CB?
Low head pressure and high vapor pressures in your Rheem Heat Pump can occur if the = is in bypass mode. Verify the thermistor and pressure transducer connection and operation. A bad compressor can also cause this issue, requiring replacement.
General| Brand | Rheem |
|---|---|
| Model | RA1748AJ2CB |
| Category | Heat Pump |
| HSPF Rating | 8.2 |
| Refrigerant | R-410A |
| Compressor Type | Scroll |
| Voltage | 208/230V |
| Phase | 1 |
| Cooling Capacity | 48000 BTU/h |
| Heating Capacity | 48000 BTU/h |
Essential safety warnings and cautions for installation and operation of the unit.
Lists required tools and provides essential information on R-410A refrigerant.
Procedures for resetting lockouts and entering test/fault recall modes for diagnostics.
Explains the dual 7-segment LED display codes for system status and faults.
Details specific codes for open circuits, start/run issues, and pressure control faults.
Covers high pressure faults, temperature sensor issues, internal control faults, and data errors.
Details specific protection modes like low/high pressure, locked rotor, and open start circuit.
Critical steps for evacuating the system to remove air/moisture and performing leak tests.
Methods for checking system charge using various tools and configurations.
Techniques for gross charging by pressure and fine-tuning the charge using subcooling.
A step-by-step guide to troubleshoot electrical issues preventing unit operation.
A flowchart to diagnose mechanical problems affecting cooling performance.
A table correlating symptoms, possible causes, and remedies for common unit issues.
Identifies causes and remedies for compressor overheating symptoms.
Addresses electrical faults and issues related to flooded starts in the compressor.
Diagnoses and resolves problems related to system contamination, oil loss, and slugging.
Addresses flooding conditions and troubleshooting for electronic expansion valves.
Further troubleshooting for EEVs and diagnosing compressor issues like flood back.
